Gain-scheduling method and apparatus of individual pitch controller in wind turbine systems

摘要

The present invention relates to a wind turbine individual pitch control system and control method using gain-scheduling, and more particularly, in a wind turbine individual pitch control system for individually controlling the pitch angle of individual blades of a wind turbine, an integrated pitch command Integrated pitch controller providing a; A conversion unit for calculating a tilting moment load component and a yaw moment load component based on a bending moment for each blade and a rotor azimuth angle; A yaw controller for generating a yaw control command by comparing the yaw moment load component and a target value; A tilt controller for generating a tilt control command by comparing the tilting moment load component and a target value; A yaw gain scheduler that decreases the gain of the yaw controller as the wind speed or pitch angle increases; A tilt gain scheduler that decreases the gain of the tilt controller as wind speed or pitch angle increases; And an inverse transform unit for generating an individual pitch command for each blade based on the yaw control command and the tilt control command; including, adding the integrated pitch command and the individual pitch command to drive the pitch driver for each blade. It relates to a wind turbine individual pitch control system using gain-scheduling, characterized in that the control.